Positioning service method without electronic map

Abstract

The invention relates to a positioning service method without an electronic map. The method comprises the steps of utilizing a navigation device and a GPS module to read the current position coordinates, then comparing the current position coordinates with a target position coordinates input by a user, displaying a virtual path on a display screen, reading reference coordinates and names input by the user in advance in a reference data base and displaying the positions and names of the reference coordinates on the display screen for reference. The virtual path is the linear distance between the current position coordinates and the target position coordinates and the direction of the current position. The positioning service method does not need to develop or use an expensive electronic map by authorization or use a large number of memories for storing electronic maps or is fitted with a high-resolution display screen, thereby the development and manufacturing cost of a satellite navigation device is greatly reduced, and the user can easily judge the distance between the current position and the target position and the orientation of the current position according to the reference coordinates and the names near the virtual path to arrive at the target position smoothly.

Description

technical field [0001] The present invention is a positioning service method without an electronic map, especially a positioning service method applied to a navigation device without an electronic map. After the navigation device reads the coordinates of the current position, the current position can be The coordinates are compared with the destination coordinates input by the user, and a virtual route and the location and name of the reference point coordinates are displayed for the user's reference. Background technique [0002] When a user wants to drive a vehicle in an area with an unfamiliar route, traditionally, he or she will refer to a paper map, complete the route planning in advance, and then move according to the planned route. However, if the user moves a long distance, or When a user wants to move between multiple counties, cities or regions, he must purchase several paper maps to understand the routes of each county, city or region. Therefore, the user must not...

AI Technical Summary

Problems solved by technology

Also, in order to clearly display the roads, facilities and related signs of the electronic map, the traditional navigation device 10 is generally equipped with a high-resolution display screen 14. All these factors have caused the development and production costs of the traditional navigation device 10. remain high, and thus make the price of the navigation device 10 expensive, and cannot be popularized to all consumer classes

In addition, because roads, facilities and related signs will be added, deleted or changed over time, the user must pay to update (update) the electronic map and navigation program in the traditional navigation device 10 regularly, otherwise, the navigation device 10 will not be able to correctly Therefore, when the user uses the navigation device 10 on a newly opened road, the navigation device 10 will not only fail to display the correct navigation route 23, but may even display Wrong routes or crashes, etc., causing serious distress and inconvenience to users

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